<?php
session_start();
if(isset($_SESSION['kt_login_id']==false){
	$_SESSION['back']=$_SERVER['PHP_SELF'];
	header("location: dangnhap.php");
}
?>
<html xmlns="http://www.w3.org/1999/xtml">
<head><title>ban hang</title></head>
<body>
Day la trang main , chi hien khi user login <br/>
<p><?php echo "Chao ban".$_SESSION['kt_login_user']; ?></p>
<p><a href="thoat.php">Thoat</a></p>
</body>
</html>